Home / 205,785.60-284,016.96-120,923.52

Finding the Fourth Proportional to 205,785.60, 284,016.96 and 120,923.52

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Solution

The fourth proportional to 205,785.60, 284,016.96 and 120,923.52 is: 166,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,785.60 : 284,016.96 = 120,923.52 : x
  2. Step 2: Convert to fraction form
    205,785.60/284,016.96 = 120,923.52/x
  3. Step 3: Cross multiply
    205,785.60x = 284,016.96 × 120,923.52
  4. Step 4: Simplify right side
    205,785.60x = 34,344,330,542.90
  5. Step 5: Solve for x
    x = 34,344,330,542.90/205,785.60
  6. Step 6: Final answer
    x = 166,893.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.